Network Monitoring Server And Network Monitoring System

Abstract

A failure factor can be promptly carved up by effectively prioritizing the ports to which MEPs are assigned in a condition where the maximum number of MEPs is limited. A network monitoring server monitors a network having plural switch devices. The plural switch devices each have a communication confirmation function using transmission and reception of a monitoring frame between ports. An upper limit is set to the number of ports to which maintenance end points (MEPs) are assignable among the respective ports of the plural switch devices. The network monitoring server calculates, for each of the plural switch devices, a monitoring priority corresponding to the probability of failures of a device connected to a network path including the port or the port, and generates data for displaying the calculated monitoring priority of each port in association with each port.

Description

CLAIM OF PRIORITY[0001]The present application claims priority from Japanese patent application JP 2010-069503 filed on Mar. 25, 2010, the content of which is hereby incorporated by reference into this application.FIELD OF THE INVENTION[0002]The present invention relates to a network monitoring server, and more particularly to a network monitoring server that manages a failure monitoring function provided in a network device in order to detect a failure in a communication network.BACKGROUND OF THE INVENTION[0003]Up to now, for the purpose of confirming a communication of a wide area network, a method in which monitoring frames are periodically transmitted from a port at an end point of a path, and the reception of the frames is confirmed at an opposed port has been widely used. In particular, in the Ethernet network, an Ethernet (registered trademark) OAM (operations administration maintenance, refer to IEEE 802.1ag Connectivity Fault Management (CFM)) is used.[0004]In addition, in ...

AI Technical Summary

Benefits of technology

The present invention provides a network monitoring server and system that can effectively prioritize the ports to which maintenance end points are assigned, even when the number of ports is limited. This enables the failure factor to be quickly identified and carved up, improving network monitoring efficiency.

Problems solved by technology

However, the above-mentioned method combining the ping and the Ethernet OAM together to carve up the failure factor has suffered from a problem on scalability.

However, in this method, a port of a core switch is selected preferentially, and a range where the communication can be confirmed is limited to the vicinity of the core switch.

This leads to such a problem that it cannot be determined at all whether the failure factor exists within the network, or not.

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